*{
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}
html,body{
    width: 100%;
    height: 100%;
    background-image: url(../img/backgroud.jpg);
    background-repeat: no-repeat;
    background-size: cover;
}
.nav{
    width: 100%;
    height: 50px;
    background-color: rgb(116, 116, 116);
    display: flex;
    justify-content: left;/* 水平方向 */
    align-items: center;/* 垂直方向 */
    color: aliceblue;

}
.nav img{
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-left: 10px;
    margin-right: 10px;
}
.nav .space{

    width: 65%;
}
.nav a{
    color: aliceblue;
    text-decoration:none ;
    margin-right: 20px;
}
.container{
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
    height: calc(100% - 50px);
    width: 100%;

}
.container .container-left{
    height: 100%;
    width: 30%;

}
.container .container-right{
    height: 100%;
    width: 70%;
    overflow: auto;
}
.card{
    height: 50%;
    width: 65%;
    background-color: rgba(221, 221, 221, 0.8);
    margin-left:170px ;
    margin-top: 10px;
    border-radius: 15px;
}
.card img{
    width: 140px;
    height: 140px;
    border-radius: 50%;
    margin-left:100px ;
    margin-top: 50px;
}
.card h3{
    text-align: center;
    margin-top: 10px;
    margin-bottom: 10px;
}
.card a{
    display: block;
    text-align: center;
    color: blue;
    text-decoration: none;
    margin-bottom: 10px;
}
.card .counter{
    display: flex;
    justify-content:space-around ;
    margin-top: 20px;
}
.blog{
    width: 60%;
    background-color: rgba(221, 221, 221, 0.8);
    border-radius: 15px;
    margin-top: 10px;
}
.blog .title{
    font-size: 20px;
    font-weight: 800;
    text-align: center;
    padding-top: 20px;
}
.blog .Date{
    color: rgb(36, 121, 201);
    padding-bottom: 10px;
    text-align: right;
}
.blog .desc{
    text-indent: 2em;
    line-height: 20px;
    margin-top: 10px;
}
.blog .detail{
    display: block;
    color: black;
    margin: 10px auto 0px auto;
    width: 140px;
    height: 40px;
    line-height: 40px;
    border: 2px solid black;
    text-align: center;
}
.blog .detail:active{
    color: aqua;
}